两个十分要紧的并列句结构
■湖南 刘 亚
1、句型剖析
句型一 祈使句，+and + 陈述句
该句型表示假如做到了祈使句表示的事情，就会有后面句子表示的结果。如：
Be quiet, or he will hear us. 安静，不然他们会听见大家的。
Work hard, and you will pass the exams. 好好学习，你就会通过考试。
Come early, and you will see the film star. 早点来，你就能看到这位电影明星。
句型二 祈使句，+ or + 陈述句
该句型表示假如不做到祈使句表示的事情，就会有后面句子表示的结果。如：
Hurry up, or we’ll be late for school. 快点，不然大家就会是上学迟到。
Get up or you’ll be late for school. 起床吧，不然你上掌握迟到了。
Keep to the path or you’ll lose your way. 沿这条小道走，不然就要迷失方向。
2、命题切入点
针对这句型最可能的命题切入点有三个方面：
1. 考查祈使句句首的动词形式。祈使句句首用动词原形。如：
Just ______ to him, and you will see how clever he is!
A. to listen B. listen C. listened D. listening
答案选B。由于是祈使句，所以句最重要用动词原形。
2. 考查连词and与or的选择与辨析。看前后意思是不是一致，若意思一致，则用and；若意思不同，则用or。如：
Be quick, ______ you’ll miss the early bus.
A. andB. soC. butD. or
答案选D。由于前后意思不同，句意为“快点，不然你就赶上不早班车了”。
3. 考查陈述句中的动词时态。原则上用一般以后时。如：
8. Be quiet or you______ the whole house!
A. are waking B. have waken C. will wake D. wake
答案选C。因其中的陈述句表示以后意义，故用一般以后时。
3、热身练习
1. Use your head, ______ you’ll have an idea.
A. orB. andC. butD. so
2. ______ the road and you’ll find the building soon.
A. Follow B. Following C. Followed D. to follow
3. ______ your radio down, or you’ll wake the others.
A. Turning B. To turn C. Turned D. Turn
4. ______ a bit closer and you’ll be able to see better.
A. To come B. Coming C. Came D. Come
5. Make sure it is not too hot ______ it’ll burn your mouth.
A. and B. or C. yet D. so
6. Come on, ______ you’ll be late for school.
A. but B. and C. or D. so
7. Keep to the path or you ______ your way.
A. are losing B. have lost C. will lose D. lose
8. Don’t say that again or you______ into trouble.
A. have got B. are getting C. will get D. get
9. Do as the doctor says, ______ your cough will get worse.
A. orB. andC. thenD. so
10. Don’t stand there, Tom, _____ you’ll bang your head.
A. orB. andC. butD. so
11. Don’t eat so much, ______ you will become fat.
A. but B. and C. or D. so
12. ______ to the teacher carefully, or you’ll miss what he says.
A. Listening B. To listen C. Listened D. Listen
13. Come home in time, or you mother ______ about you.
A. will worry B. worries C. to worry D. worried
14. Do it carefully, ______ you’ll make a mistake.
A. but B. and C. or D. so
1—5 BADDB 6—10 CCCAA 11—14 CDAC
